Self-adjusting radius rod



Sept. 2, 1930. P. E. MATTHEWS ssw ADJUSTING mmus non Filed April 15,1929 Phil? Ema/2M, M

wherein provision is" made 'for P tented Sep 1 3 1- MOTOR- COMPANY,

' J seir b r li ms; 1361? Application filed April The present invention,rela-tes; to V radius rods for spacing theaxle of a motor vehicle fromthe frame rinusuch manner that the,

drivingreac-tions may be, properly trans- 5 mitted from the wheels tothe body of the"- vehicle. More particularly, the invention emibod es animproved form of connectlon be I V tween, aradius rod and-frame memberofthe vehicle, the connection" being of such chari acterthata degreeofmovement between these members may be yieldingly accommodated; lInvehicles of the'chaindrive' type more H particularly, thechainffrequently becomes locked,this condition" resulting from theaccumulation of clay-,stones: or; other impedi-' ments between the linksof the chains an'dthe I "a modi'fied'ff rm ofthe'inveiitionl 1 L p Figiiree' 'is avietv'linse'ction taken'on line w V sprockets.This-conditionimposes enormous strains upon the vehicleframe as well asall V of the driving member's'jand'it is'very de g sirable toreduce'thedeleterious effects thereof f as faraspossible, x Afurther-objectionable v it'rleSig ate'sthe "vein 1e chassi uponcondition which frequently I arises is that in which a driving Wheelbecomes lodgedin positions Wherethe traction available is reduced"materially The consequent,slipping due to poor traction prevents theacceleration of the truck and additional means, must be sought vtorelieve the condition. V V It is anobject of this invention, accordi-3'0 ingly, to provide an improved'form ofradius rod which is connectedto the frame in such manner that a degree of movement between the wheeland frame is'yieldingly accommodated. 1

vide a construction-0f the above'characterfin Which thetraction ismaterially increased by reason of the rovision for a de ree of move- I vment of the \ivheel before "the 'full acceler i:' that the head Onmymove axmuy upon '40 ating and driving forces'are impressed upon theframe, thus permitting the wheel to get in motion beforethe driving,reactiOnsare fully carried thereby; V i v f l A further object of theinven tionj isnto provide an improved connection "between a radius rodand frame member of the vehicle accommodating adegree of movementbetween-the radius rod and frame, the connection therebetween withrespectfto the frameysuch {movements A further object of theinvention'is to pro f formed With'spring seats f. An intermeon NEW YORK,'NQLY; n mq r or DELAW R seria ize; jasaii'afj 1Q "Thab'ove objects'areattaiiiatyu e pr vision of-ia memb'erWhich-i'sflbodily movablebeing-"cushionedr and connecting one fend of the radiusrfod'tosuch-memberiz 1 Further. objects, not sp cifically: enumer I atedabovd-will. be apparenta's the invention is described; in greaterdetail. connection '60 with the" a ccdinpanyirig drawings, wherein:Figii're" 1 is a vi'ew inifside elevation ing oneform ofi'theinventi'on. 7 '1 V Figure Zisja'i i'eW' n end'el evation; how;

2thedevicfeofiF re b M gur'e 34s a v ew in .14 of Figure and lookinginvu ee ee: a

icul arlyi to Figures If and 2;;

side frame member "of a 3 .liich'fbrackets were secu redi f [Thesebrackets are formed with V aperture-diezitensionsa within whichya bolt bis mountedl nut-i zi isecui- S the? bolt' in place and v a head: '0 isslidable thereon,.,the'

, sliding movement thereofbeingyieldingly resisted'bycoil springs dti" ythe extensions 0- It will be seen from the foregoing descripthe bolt72,.such .movementbeing yieldingly resisted by springs cl, Inthismanner, the

deleterious stresses due tothe locking of the chain, and otherinjuriousconditions, are re 7 v lieved In. addition to. the ."foregoing,the

traction during acceleration is increased since the heel may get intomotion before assuming-the full load accelerating reactions.

Referring to Figures 3 and t, the vehicle side frame member a carriesspaced brackets beingsimple in{construction andpossessing.great-istren'gth.

s'id eefevationsho n I diate bracket 9 is mounted on the frame andforked extremities h receiv'ethe end 6 of 10 the radius rods in asimilarmanner to the formed witha squared inverted recess 9, the

lower extremities carrying retaining flanges g whichare secured to thebracket by means of bolts 9?. A cross'head h is formed with a T-sha-pedheadh which is carried in the inverted recess 9' and retained in suchposition by'means of flanges g Depending construction shown' in Figures1 and 25 At either endof the 'cross'he'ad h, spring seats k aref0rmed,coil springs 2' being seat ed between the respective seats f andh?-.to

' cushion the longitudinal movement of the cross head It in the bracket,9. The operation of the deviceshown in Figures 3 and 4 correspondsclosely to that shown in Figures land 2 and further description thereofis deemed unnecessary,

,flvhile the invention has beensho'wn'as I embodied in the specificconstructions shown in theaccompanying drawings. it will be apparentthat it includes all devices in'which a member is yieldingly mountedupon the frame to partake of movement of translation,

r and the-scopeithereof is not-tobe limited,

save asdefined inthe appended claim.,

Iclaim as myinvention'z v In-coinb1nat10n,a veh cle' frameya radius rod,spaced brackets on the frame, anin'ter mediate bracket betweenthefirstbracket-and I formed with a slide groove,;a-member movable withrespect tothe brackets and slidably carried in the groove to restrictthe movement of 1 such. memberto a plane, including said 'rbrackets,seats upon the first brackets and the adjacent fates of the movablemember, coil springs mounted in the, seats between the brackets and themember to cushion movement thereof, and means toconnect the member-tothe radius rod.

This. specification signed this lothday of April, A. D.-1929. y

' I PHILIP E. MATTHEWS;

